Brief introduction of Lianchuang 839 maize variety
Lianchuang 839 is a new maize variety bred by Beijing Lianchuang Seed Industry Co., Ltd., which is another new maize variety with disease resistance and high yield after Yufeng 303, Lianchuang 825 and Lianchuang 808.
In addition, Lianchuang 839 also has the advantages of good adaptability, good disease resistance, strong lodging resistance, heat resistance and density resistance, stable and high yield, especially in resistance to rust and stem rot.
Lianchuang 839 can be planted in Huang-Huai-Hai area or East and North China in spring. This maize variety was sown in summer in Huang-Huai-Hai area, with an average yield of 667.8kg per mu, and in spring in East China and North China, with an average yield of 806kg per mu.
Announcement on the Examination and Approval of Lianchuang 839 Maize Varieties
Lianchuang 839 corn seed has passed the examination and approval of two main producing areas in Northeast China and Yellow River. In 20 17, it was approved by the national spring corn planting areas in east and north China, and in 2020, it was approved by the national Huanghuaihai summer corn planting area.
Examination number: Guo Shen Yu 20206202
Variety name: Lianchuang 839
Applicant: Beijing Lianchuang Seed Industry Co., Ltd.
Breeders: Beijing Lianchuang Seed Industry Co., Ltd. and Henan Longping Lianchuang Agricultural Science and Technology Co., Ltd.
Variety source: CT 1669 1×CT8204.
Examination and approval opinion: This variety conforms to the national maize variety examination and approval standard and has passed the examination and approval.
Study on Seed Characteristics of Lianchuang 839 Maize
Lianchuang 839 has excellent stability, outstanding disease resistance and lodging resistance, thin axis, deep grain, long grain length, high yield, neat ear and good uniformity, and is suitable for mechanized harvesting. Let's learn more about the characteristics of this corn seed.
Main characteristics of varieties
① Maturity
Lianchuang 839 is 1.27 days from emergence to maturity in the northeast spring corn region, which is earlier than Zheng Dan 958 1 day.
The growth period of Lianchuang 839 maize in Huanghuaihai region is 10 1 day, which is earlier than that of Zheng Dan 958 1 day.
② Seedlings
Lianchuang 839 maize seedlings have purple bud sheath, green leaf margin, green leaves, light purple anthers and light purple glume.
③ Plant types
Lianchuang 839 maize is semi-compact, with ear height 1 12cm, plant height of 285cm and leaf number per plant of 2 1.
This maize variety has strong seedlings, strong and elastic stems, low center of gravity, developed aerial roots and strong lodging resistance.
④ ear of fruit
Lianchuang 839 has purple filaments, tubular spikes, spike length 19.9cm, spike rows 16- 18, red spike axis, yellow grain color, half-horse teeth, and 100-grain weight of 36.5g. ..
⑤ Grain quality
The bulk density of Lianchuang 839 corn was 760 g/L, with crude fat content of 3.59%, crude protein content of 9.9%, lysine content of 0.35% and crude starch content of 74.465438 0%.
⑥ Disease resistance
Inoculation identification: Lianchuang 839 maize is resistant to leaf blight, highly resistant to Fusarium stem rot and Fusarium ear rot, moderately resistant to head smut and susceptible to gray spot.
Yield performance
20 18-20 19, Lianchuang 839 participated in the regional test of green channel of Huanghuaihai summer maize group, with an average yield of 667.8kg per mu in two years, which was 5.85% higher than that of the control Zheng Dan 958.
In the production test in 20 19, the average yield per mu of Lianchuang 839 was 664. 1 kg, which was 5.65% higher than that of Zheng Dan 958.
In the actual planting in various places, there are many high-yield models with a yield of more than 2,500 kg per mu in Lianchuang 839 spring sowing area, with an average yield of about 2,000 kg per mu.
In summer sowing area, Lianchuang 839 corn has many high-yield models, with an average yield of about 1.800 kg per mu.
Suitable planting area
① Spring sowing area
Lianchuang 839 is suitable for planting in the spring corn areas of East China and North China, such as Beijing, Tianjin, northern Hebei, Chifeng and Tongliao in Inner Mongolia, and in the middle and late maturity areas of Shanxi, Liaoning and Jilin. Attention should be paid to the prevention and treatment of gray spot disease.
② Summer sowing area
Lianchuang 839 is suitable for planting in central and southern Henan, Baoding and Cangzhou in Shandong, Yuncheng and Linfen in Shaanxi, parts of Pingchuan in Jincheng, Shanxi, north of Huaihe River in Anhui, Jiangsu and Xiangyang in Hubei.
Key points of cultivation techniques
① Spring sowing area
Lianchuang 839 corn seeds are suitable for planting in medium fertility plots. The sowing period is from late April to early May, with a density of about 3,800 plants per mu, but attention should be paid to the prevention and control of gray leaf spot.
② Summer sowing in Huanghuai area
Lianchuang 839 corn is suitable for planting in plots with medium fertility and from late May to early June, with a planting density of about 4,000 plants per mu, but attention should be paid to the prevention and control of ear rot, leaf spot and smut.
Warm reminder: The relevant introduction of this article has been sorted out through the network, and the specific information is subject to the introduction of the corresponding seed official website.